“downward social mobility”概念、定义、翻译-科学时代

单词	downward social mobility
释义	社会学词汇手册 downward social mobility 下降社会流动
随便看	Hough function Hounan hound hounds-tooth check hour hour hour hour angle hour angle hour-angle axis hour-angle coordinate system hour-angle difference hour circle hour circle hour cost hour glass hourglass hourglass hourglass hourglass drum hourglass drum Hourglass Nebula hourglass perforation hourglass style hour index

科学时代收录了1160609条科普词条，基本涵盖了常见科普常识及英语词汇的翻译，是科学学习和研究的有利工具。